x=0:0.1:1;
y=[0.91872,0.91284,0.90537,0.90087,0.89522,0.89073,0.88889,0.88991,0.89225,0.89508,0.89564];
plot(x,y,'-b.','LineWidth',2,'Markersize',16)
xlabel('\gamma')
ylabel('RMSE')
set(gca,'ylim',[0.85,1]);
set(gca,'ytick',0.85:0.02:1);
set(gca,'yticklabel',0.85:0.02:1);